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Keywords: anode
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Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12787
... is applied to the new bottom by installing anodes in the sand bed, laid in-between old and new bottoms. Large diameter tanks usually have impressed current cathodic protection (ICCP) systems with an MMO anode due to high CP current demand, and small diameter tanks have galvanic anode CP systems. Current...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12827
... cathodic protection configurations are used worldwide in tanks. The field-erected mixed metal oxide (MMO) anode welded grid configuration was an early application of MMO anodes for tank bottoms and has a large global installed base. A newer design to protect tank bottoms is a system of parallel...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12910
... ABSTRACT The stab having been made away from the middle of the anode The probe not having been oriented perpendicular to the surface of the anode The structure around the anode leading to distortion of the electric fields, for example because there is a coating defect on the structure...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13378
... system from codes & standards. iii. Use of cathodic protection modelling to optimize cathodic protection system design; Findings on mitigation of galvanic anodes interferences are presented to illustrate the purpose. iv. Design of a passive water/air renewal system to prevent side effects...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12996
... materials and corrosion Upstream Oil & Gas flowline corrosion oilfield chemistry Pipeline Corrosion riser corrosion metals & mining H2S management test specimen current capacity anode application Corrosion Management texas 77084 permission protection manuscript Production Chemistry...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13056
... be compared with the potential additional costs associated with increased monitoring and maintenance during operation, including subsea retrofitting of anodes in case the design capacity initially installed proves to be insufficient. The objective of this paper is to describe the basis for the design...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13002
... and then to distribution systems. flowline corrosion oilfield chemistry well integrity concentration Corrosion Inhibition materials and corrosion riser corrosion Corrosion Management water management Subsurface Corrosion Publication Division condition assessment protection discrete anode texas 77084...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13011
... of providing long term corrosion protection, but this goal has not always been achieved. In a few cases there have been issues with anodes, but more often the system has become non-functional due to issues related to wiring, rectifiers, installation quality and details, grout and concrete materials...
Proceedings Papers

Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-13124
... depolarization setup seawater stainless steel Houston intermediary water pseudo-polarization curve anode manuscript Carbon steel and Stainless-steel cathodic protection design data in Deepsea Water Influence of the environment on the biofilm cathodic activity Erwan Diler, Nicolas Larché...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11321
... requirements between different design guidelines, materials compatibility issues (e.g. CP induced hydrogen embrittlement), current drains due to adjacent structures, coating concerns, and anode manufacturing quality. This paper will focus on how to address the major CP concerns from the system point of view...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11567
... leading to reduced CP effectiveness and potential corrosive conditions for the tank bottoms. Furthermore, in many situations, CP could become ineffective due to the poor ionic conductivity within tank beds and failure of anodes. Limited research and fieldwork have shown that vapor corrosion inhibitors...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-10858
... metal or galvanic anode. The chemical reaction taking place in an electrochemical cell causes the cathode to be protected and anode to disintegrate. For larger structures and where electrolytes have high resistivity, the potential difference between cathode and galvanic anode is not enough to generate...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-10558
..., but when this happens, corrosion can be severe as oxygen availability is not limited. materials and corrosion construction materials well integrity Pipeline Corrosion riser corrosion Publication Division anode Upstream Oil & Gas texas 77084 splash zone salt water permission...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-10914
... Inhibition materials and corrosion Subsurface Corrosion oilfield chemistry riser corrosion flowline corrosion Production Chemistry well integrity Pipeline Corrosion US government H2S management texas 77084 specimen geometry test vessel Publication Division ASTM Test Method anode nace tm0115...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-10933
... site. The deployment was successful and allowed getting actual polarization curves, and local initial corrosion data. In parallel, the stability of zinc galvanic anodes has been evaluated in this resistive environment. For both corrosion and CP data, different results have been highlighted for surface...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-10954
... ABSTRACT The silicon iron anodes used in impressed current cathodic protection are manufactured using three different casting methods: The centrifugal method, the die-cast method, and the sand-cast method. The sand-cast method is restricted to the production of stick anodes; therefore...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-10494
... ABSTRACT In 2012, a cathodic protection (CP) trial was undertaken to establish the current requirements to protect the submerged and buried bare steel internal surfaces of monopiled windturbine structures in the North Sea. Aluminium alloy anodes were utilized for the CP trial system...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11109
... or automatically without human intervention. The monitoring device is based on the measurement of the galvanic current and potential (i.e. the polarization of the structure) between a sensing surface of known exposed area connected to i) a sacrificial anode or ii) a component attached to the CP system...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11378
... ABSTRACT Marine structures must deal with the corrosive effects of salt water in a way that is low cost, reliable, and environmentally friendly. Aluminum would be a good choice for a sacrificial anode to protect steel structures if it did not passivate. However, various elements can be added...
Proceedings Papers

Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11352
... ABSTRACT Anode resistance is a fundamentally important quantity which is used in all CP system design work in the marine environment. Established methods for calculation of anode resistance determine the resistance through the electrolyte between the anode surface and ground (or ”remote...

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